Tread portion of an automobile tire



FIG. 1 is a perspective view of a tread portion of an automobile tireaccording to my design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a fragmentary enlarged front view showing the details of thetread portion thereof;

FIG. 8 is a section view taken along line 8-8 in FIG. 7; and,

FIG. 9 is a section view taken along line 9-9 in FIG. 7.

A bottom view is omitted because it is the same as the top view.

The dark stippled surface shading represents the recessed portion of thetread grooves having a depth.

The broken lines are for illustrative purposes only and form no part ofthe claimed design.

The ornamental design for a tread portion of an automobile tire, asshown and described.